Leader pipe attachment

ABSTRACT

A leader pipe attachment includes a pipe section mounted between the leader pipe and a standpipe. Dirt coming from the leader pipe is caught on a screen in the pipe section and the rain water spills through a port in the pipe section above the screen into an annular chamber surrounding the pipe section, returning thereinto through inlet ports below the screen. A slidable cover surrounds the pipe section and may be moved out of a covering position over the outlet port so that accumulated dirt may be removed through the port.

United States Patent 1111 3,628,668

[72] Inventor Max l-luppert [56] References Cited Bornvveg 28, 83 Bad Soden, slllllllllllfl' UNITED STATES PATENTS Germany 1,074,375 9/1913 Miller 210/446 [211 P 2,925 1,230,024 6/1917 Pritchard.... 210/446 $255 3;; 1,552,902 9/1925 Werner 210/446 x I u u 0 n n u e n n u I I 6 a l I a on 4 Priorities J. 1969 3 39 30 8/ I968 Hornqurst 210/ 46 X [33] G a Primary Examiner-Reuben Friedman [31] P 19 ()2 417,0; Assistant Examiner-R. W. Burks July 15, 1969, Germany, No. G 69 27 P- Kelmafl 952.3

ABSTRACT: A leader pipe attachment includes a pipe section [54] LEADER PIPE ATTACHMENT mounted between the leader pipe and a standpipe. Dirt com- 12 Claims, 4 DruvIng I'lgg, ing from the leader pipe is caught on a screen in the pipe section and the rain water spills through a port in the pipe section [52] U.S. Cl. 210/446, 1 above the screen into an annular chamber surrounding the [51] In 52/ pipe section, returning thereinto through inlet ports below the [50] i 52/12 1 screen. A slidable cover surrounds the pipe sectlon and may be moved out of a covering position over the outlet port so that accumulated dirt may be removed through the port.

PATENTED UECZI ml INVENTOR.

By MM HOP ER? II/ I LEADER PIPE ATTACHMENT The present invention relates to improvements in apparatus associated with a rainwater leader pipe and a standpipe for receiving the rainwater from the leader pipe and discharging it into the standpipe whence it may be removed into a sewer, cesspool or the like.

Conventional apparatus of this type may include a pipe section coaxial with the leader pipe and standpipe, with the leader pipe leading into one end of the pipe section and the other end of the pipe section leading into the standpipe. A screen is mounted in the pipe section between the ends thereof to collect leaves, dirt and the like which may be contained in the rain water coming from the gutter on the roof. The pipe section has an outlet port means between the screen and the one pipe section end through which the accumulated solid material on the screen may be removed from to time to time. A slidable cover sleeve surrounds the pipe section end is slidable from an outlet port means covering position to a second position wherein the cover sleeve is removed from the outlet port means.

In such apparatus, unless the screen is frequently cleaned, the pipe section is soon clogged and continuing flow of rainwater thereinto will cause the rainwater to spill out of the outlet port means and run down along the outer wall of the pipe section. This will eventually cause erosive damage to the ground underneath the gutter and to any house wall laterally adjacent thereto.

The above and other disadvantages are overcome in accordance with the present invention by providing an annular chamber surrounding the other pipe section end, an inlet port means being provided between the screen and the other pipe section end, and the annular chamber being in communication with the inlet port means. The slidable cover sleeve extends into the annular chamber when it is in the covering position over the outlet port means.

With such an apparatus, the accumulated solid matter may readily be removed manually by simply lifting the cover sleeve and thus gaining access to the outlet port means in the pipe section wall but any rain water spilling out of the outlet port means and running down the pipe section wall will be gathered in the annular chamber and directed back into the pipe section through the inlet port means, rather than doing outside damage.

The above and other objects, advantages and features of the present invention will become more apparent in the following detailed description of a now preferred embodiment thereof, taken in conjunction with the accompanying drawing wherein FIG. I is an axial section of the apparatus, with the cover sleeve in the covering position;

FIG. 2 is a similar fragmentary view, with the cover sleeve in a second position;

FIG. 3 is a horizontal section along the line III-III of FIG. 1; and

FIG. 4 is a similar section along line IVIV of FIG. 1, partly broken away.

Referring now to the drawing, there is shown a pipe section 1 coaxial with the leader pipe 3, which receives rain water from the gutter on a roof, and the standpipe 17, which carries the collected rainwater off, for instance into a cesspool, to a pipe leading into a sewer or to the street, or any other suitable reservoir or rainwater collection point. As shown, the leader pipe leads into one end 4 of the pipe section I, which end is inwardly tapered to surround the leader pipe and has axially extending corrugations best seen in FIG. 4, to channel rain water overflow coming from an annular overflow opening defined between the leader pipe and the pipe section end 4. The other end 8 of the pipe section 1 leads into the standpipe 17, with the standpipe coaxially surrounding the pipe section end 8.

A removable screen 6 is mounted in pipe section 1 between the ends 4 and 8 thereof, the screen being supported in the pipe section by a shoulder 6a in an oblique position so as to define a chute leading towards outlet port in the pipe section wall between the screen 6 and the one pipe section end 4. The screen is dished, i.e. it is of concave configuration in the direction of the pipe section end 4.

A annular chamber 9 surrounds the other pipe section end 8 and is in communication with an inlet port means between the screen 6 and the other pipe section, the inlet port means being defined by a circumferentially extending series of slotted apertures 10 in the pipe section wall. The annular chamber is defined b the pipe section wall and a sleeve 7 surrounding the same. Rainwater coming through the outlet port 5 when screen 6 is clogged passes into the annular chamber 9 and returns into the pipe section through the ports 10 below the screen while the screen retains leaves, dirt and other solid matter coming from the leaders and gutter with the rainwater. As shown, the upper rim of the sleeve 7 is about at a level with the outlet port 5 but another suitable spacing may be chosen as long as the annular inlet chamber 9 is so arranged as to receive overflow from port 5. When solid matter has accumulated on screen 6 to a level reaching above port 5 so as to clog this outlet, the water will rise in the pipe section 1 until it overflows through the annular overflow defined between the gutter pipe 3 and the inwardly tapered, corrugated pipe section end 4, thus spilling down over the outer wall of the pipe section back into annular collection chamber 9, the axially extending corrugations in the pipe section end 4 channeling the flow of the rainwater.

A slidable cover sleeve 11 surrounds the pipe section I and is slidable over the pipe section from a position wherein it covers the outlet port 5 (FIG. 1) to a second position (FIG. 2) wherein the cover sleeve 11 is removed from the outlet port. In the covering position, the lower end of sleeve 11 is supported by a series of circumferentially and radially extending pins I2 on the pipe section wall so that the cover sleeve 11 extends into annular chamber 9. The support pins are mounted just above the inlet ports 10 in the illustrated embodiment. Another retaining means for holding the cover sleeve in a selected position in relation to outlet port 5 is a resilient bracket 13 bolted or otherwise fastened to the wall of pipe section I. The resilient bracket includes an outwardly bulging hooked end 14, and the cover sleeve has a matingly bulging flanged end 15 engaging the hooked end of the bracket in the covering position of sleeve 11. Since the bracket is resilient, the sleeve may be slid thereover into the second position shown in FIG. 2, wherein the lower end of the cover sleeve is engaged by the hooked end of the bracket while the bracket retains the cover sleeve in this raised position above outlet port 5. In this position, there is ready access to the outlet port for cleaning out the pipe section. To facilitate the sliding movement of cover sleeve 11, longitudinal guide ribs 16 (see FIG. 3) are provided between the pipe section 1 and cover sleeve 11. In the illustrated embodiment, the guide ribs are fixed to the wall of pipe section I. They may obviously also be mounted on the inner wall of the cover sleeve.

As shown in FIG. I, the sleeve 7 has an inwardly tapering extension 19 surrounding standpipe l7 and engaging the standpipe so that all rainwater in the annular chamber 9 will be directed back into the pipe section I through inlet ports 10, the pipe section end 8 then directing all the rainwater into the standpipe whereinto it extends. The sleeve extension 19 may be of sheet lead, for instance, so that it may readily engage the standpipe and thus securely be mounted on it as an attachment of the standpipe. If desired, it may be sealed thereto, such as by weld 18.

While the invention has been described in connection with a specific embodiment, it will be understood that many variations and modifications may occur to those skilled in the art, particularly after benefiting from the present teaching.

Iclaim:

1. An apparatus associated with a rainwater leader pipe and a standpipe for receiving the rainwater from the leader pipe and discharging it into the standpipe, comprising 1. a pipe section coaxial with the leader pipe and the standpipe,

a. the leader pipe leading into one end of the pipe section and the other end of the pipe section leading into the standpipe;

2. a screen mounted in the pipe section between the ends thereof;

3. the pipe section having an outlet port means between the screen and the pipe section end and an inlet port means between the screen and the other pipe section end;

4. an annular chamber surrounding the other pipe section end and in communication with the inlet port means; and

. a slidable cover sleeve surrounding the pipe section and slidable from an outlet port means covering position wherein the cover sleeve extends into the annular chamber to a second position wherein the cover sleeve is removed from the outlet port means.

2. The apparatus of claim 1, wherein the other pipe section end extends into the standpipe.

3. The apparatus of claim 1, wherein a sleeve surrounds the other pipe section end and defines the annular chamber with said end.

4. The apparatus of claim 3, wherein the sleeve has an extension surrounding the standpipe.

5. The apparatus of claim 4, wherein said sleeve extension is of sheet lead and engages the standpipe.

6. The apparatus of claim 4, wherein said sleeve extension is sealed to the standpipe.

7. The apparatus of claim 1, wherein the one pipe section end surrounds the leader pipe, the leader pipe and the one pipe section end defining therebetween an overflow opening.

8. The apparatus of claim 7, further comprising axially extending corrugations on the one pipe section and in the overflow opening for channeling overflow therein.

9. The apparatus of claim 1, wherein the screen is of concave configuration in the direction of the one pipe section end.

10. The apparatus of claim 1, further comprising retaining means on the pipe section for holding the slidable cover sleeve in a selected one of said positions.

11. The apparatus of claim 10, wherein the retaining means includes a resilient bracket means mounted on the pipe section between the outlet port means and the one pipe section end, the bracket means including a hooked end, the cover sleeve having a flanged end engaging the hooked end in the covering position, and the hooked end engaging the other end of the cover sleeve in the second position thereof.

12. The apparatus of claim 1, further comprising axially extending guide means between the slidable cover sleeve and the pipe section for guiding the sleeve along the pipe section. 

1. An apparatus associated with a rainwater leader pipe and a standpipe for receiving the rainwater from the leader pipe and discharging it into the standpipe, comprising
 1. a pipe section coaxial with the leader pipe and the standpipe, a. the leader pipe leading into one end of the pipe section and the other end of the pipe section leading into the standpipe;
 2. a screen mounted in the pipe section between the ends thereof;
 3. the pipe section having an outlet port means between the screen and the pipe section end and an inlet port means between the screen and the other pipe section end;
 4. an annular chamber surrounding the other pipe section end and in communication with the inlet port means; and
 5. a slidable cover sleeve surrounding the pipe section and slidable from an outlet port means covering position wherein the cover sleeve extends into the annular chamber to a second position wherein the cover sleeve is removed from the outlet port means.
 2. a screen mounted in the pipe section between the ends thereof;
 2. The apparatus of claim 1, wherein the other pipe section end extends into the standpipe.
 3. The apparatus of claim 1, wherein a sleeve surrounds the other pipe section end and defines the annular chamber with said end.
 3. the pipe section having an outlet port means between the screen and the pipe section end and an inlet port means between the screen and the other pipe section end;
 4. an annular chamber surrounding the other pipe section end and in communication with the inlet port means; and
 4. The apparatus of claim 3, wherein the sleeve has an extension surrounding the standpipe.
 5. The apparatus of claim 4, wherein said sleeve extension is of sheet lead and engages the standpipe.
 5. a slidable cover sleeve surrounding the pipe section and slidable from an outlet port means covering position wherein the cover sleeve extends into the annular chamber to a second position wherein the cover sleeve is removed from the outlet port means.
 6. The apparatus of claim 4, wherein said sleeve extension is sealed to the standpipe.
 7. The apparatus of claim 1, wherein the one pipe section end surrounds the leader pipe, the leader pipe and the one pipe section end defining therebetween an overflow opening.
 8. The apparatus of claim 7, further comprising axially extending corrugations on the one pipe section end in the overflow opening for channeling overflow therein.
 9. The apparatus of claim 1, wherein the screen is of concave configuration in the direction of the one pipe section end.
 10. The apparatus of claim 1, further comprising retaining means on the pipe section for holding the slidable cover sleeve in a selected one of said positions.
 11. The apparatus of claim 10, wherein the retaining means includes a resilient bracket means mounted on the pipe section between the outlet port means and the one pipe section end, the bracket means including a hooked end, the cover sleeve having a flanged end engaging the hooked end in the covering position, and the hooked end engaging the other end of the cover sleeve in the second position thereof.
 12. The apparatus of claim 1, further comprising axially extending guide means between the slidable cover sleeve and the pipe section for guiding the sleeve along the pipe section. 